headers_check fix: parisc, pdc.h

fix the following 'make headers_check' warning:

  usr/include/asm-parisc/pdc.h:420: found __[us]{8,16,32,64} type without #include <linux/types.h>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>

arch/parisc/include/asm/pdc.h

@@ -336,10 +336,11 @@
 #define NUM_PDC_RESULT	32
 
 #if !defined(__ASSEMBLY__)
-#ifdef __KERNEL__
 
 #include <linux/types.h>
 
+#ifdef __KERNEL__
+
 extern int pdc_type;
 
 /* Values for pdc_type */